Time Resolved Ft Ir Spectroscopy Of Co Hydrogenation Oversupported Ru Catalyst At 700k

Download Time Resolved Ft Ir Spectroscopy Of Co Hydrogenation Oversupported Ru Catalyst At 700k full books in PDF, epub, and Kindle. Read online Time Resolved Ft Ir Spectroscopy Of Co Hydrogenation Oversupported Ru Catalyst At 700k ebook anywhere anytime directly on your device. Fast Download speed and no annoying ads. We cannot guarantee that every ebooks is available!

Time-Resolved FT-IR Spectroscopy of CO Hydrogenation OverSupported Ru Catalyst at 700K.

Author :
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (727 download)

DOWNLOAD NOW!

Book Synopsis Time-Resolved FT-IR Spectroscopy of CO Hydrogenation OverSupported Ru Catalyst at 700K. by :

Download or read book Time-Resolved FT-IR Spectroscopy of CO Hydrogenation OverSupported Ru Catalyst at 700K. written by and published by . This book was released on 2006 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Time-resolved FT-IR spectra of carbon monoxide hydrogenation over alumina-supported ruthenium were recorded on the millisecond timescale at 703 K using various H2 concentrations (1 atm total pressure). Adsorbed carbon monoxide was detected along with gas phase products methane (3016 and 1306 cm−1), water (sharp bands from 1900 - 1300 cm−1), and carbon dioxide (2348 cm−1). No other surface species were detected other than adsorbed carbon monoxide. The rate of formation of methane (2.5 ± 0.4 s−1) coincides with the rate of formation of carbon dioxide (3.4 ± 0.6 s−1), and bands due to water are observed to grow in over time. These results establish that methane and carbon dioxide originate from the same intermediate. The adsorbed carbon monoxide band is broad and unsymmetrical with a maximum at 2010 cm−1 in spectra observed at 36 ms that shifts over 3000 ms to 1960 cm−1 due to decreasing amounts of adsorbed carbon monoxide. Kinetic analysis of the adsorbed carbon monoxide band reveals that only a portion of the band can be temporally linked to gas phase products that we observe over the first 1000 ms of catalysis. This result suggests that we are observing dispersive kinetics, which is most likely due to heterogeneity of the surface environment.

Direct Observation of the Kinetically Relevant Site of CO Hydrogenation on Supported Ru Catalyst at 700 K by Time-Resolved FT-IR Spectroscopy

Download Direct Observation of the Kinetically Relevant Site of CO Hydrogenation on Supported Ru Catalyst at 700 K by Time-Resolved FT-IR Spectroscopy PDF Online Free

Author :
Publisher :
ISBN 13 :
Total Pages : 29 pages
Book Rating : 4.:/5 (727 download)

DOWNLOAD NOW!

Book Synopsis Direct Observation of the Kinetically Relevant Site of CO Hydrogenation on Supported Ru Catalyst at 700 K by Time-Resolved FT-IR Spectroscopy by :

Download or read book Direct Observation of the Kinetically Relevant Site of CO Hydrogenation on Supported Ru Catalyst at 700 K by Time-Resolved FT-IR Spectroscopy written by and published by . This book was released on 2008 with total page 29 pages. Available in PDF, EPUB and Kindle. Book excerpt: Time-resolved FT-IR spectra of carbon monoxide hydrogenation over alumina-supported ruthenium particles were recorded on themillisecond time scale at 700 K using pulsed release of CO and a continuous flow of H2/N2 (ratio 0.067 or 0.15, 1 atm total pressure). Adsorbed carbon monoxide was detected along with gas phase products methane (3016 and 1306 cm-1), water (1900 +- 1300 cm-1), and carbon dioxide (2348 cm-1). Aside from adsorbed CO, no other surface species were observed. The rate of formation of methane is 2.5 +- 0.4 s-1 and coincides with the rate of carbon dioxide growth (3.4 +- 0.6 s-1), thus indicating that CH4 and CO2 originate from a common intermediate. The broad band of adsorbed carbon monoxide has a maximum at 2010 cm-1 at early times (36 ms) that shifts gradually to 1960 cm-1 over a period of 3 s as a result of the decreasing surface concentration of CO. Kinetic analysis of the adsorbed carbon monoxide reveals that surface sites absorbing at the high frequency end of the infrared band are temporally linked to gas phase product growth. Specifically, a (linear) CO site at 2026 cm-1 decays with a rate constant of 2.9 +- 0.1 s-1, which coincides with the rise constant of CH4. This demonstrates that the linear CO site at 2026 cm-1 is the kinetically most relevant one for the rate-determining CO dissociation step under reaction conditions at 700 K.

Space and Time Resolved Spectroscopy During the Preparation of Hydrogenation Catalyst Bodies

Author : Leticia Espinosa Alonso
Publisher :
ISBN 13 : 9789039352090
Total Pages : 169 pages
Book Rating : 4.3/5 (52 download)

DOWNLOAD NOW!

Book Synopsis Space and Time Resolved Spectroscopy During the Preparation of Hydrogenation Catalyst Bodies by : Leticia Espinosa Alonso

Download or read book Space and Time Resolved Spectroscopy During the Preparation of Hydrogenation Catalyst Bodies written by Leticia Espinosa Alonso and published by . This book was released on 2009 with total page 169 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Surface Chemistry and Catalysis

Author : Albert F. Carley
Publisher : Springer Science & Business Media
ISBN 13 : 9780306473937
Total Pages : 404 pages
Book Rating : 4.4/5 (739 download)

DOWNLOAD NOW!

Book Synopsis Surface Chemistry and Catalysis by : Albert F. Carley

Download or read book Surface Chemistry and Catalysis written by Albert F. Carley and published by Springer Science & Business Media. This book was released on 2002-09-30 with total page 404 pages. Available in PDF, EPUB and Kindle. Book excerpt: Exciting results are still emerging from the many research groups working in this fertile area and the book is an excellent stimulus to researchers at the start of the 21st century."--BOOK JACKET.

The Organometallic Chemistry of the Transition Metals

Author : Robert H. Crabtree
Publisher : John Wiley & Sons
ISBN 13 : 0471718750
Total Pages : 600 pages
Book Rating : 4.4/5 (717 download)

DOWNLOAD NOW!

Book Synopsis The Organometallic Chemistry of the Transition Metals by : Robert H. Crabtree

Download or read book The Organometallic Chemistry of the Transition Metals written by Robert H. Crabtree and published by John Wiley & Sons. This book was released on 2005-06-14 with total page 600 pages. Available in PDF, EPUB and Kindle. Book excerpt: Fully updated and expanded to reflect recent advances, this Fourth Edition of the classic text provides students and professional chemists with an excellent introduction to the principles and general properties of organometallic compounds, as well as including practical information on reaction mechanisms and detailed descriptions of contemporary applications.

New Materials for Catalytic Applications

Author : Vasile I. Parvulescu
Publisher : Elsevier
ISBN 13 : 0444635882
Total Pages : 388 pages
Book Rating : 4.4/5 (446 download)

DOWNLOAD NOW!

Book Synopsis New Materials for Catalytic Applications by : Vasile I. Parvulescu

Download or read book New Materials for Catalytic Applications written by Vasile I. Parvulescu and published by Elsevier. This book was released on 2016-01-28 with total page 388 pages. Available in PDF, EPUB and Kindle. Book excerpt: New Materials for Catalytic Applications proposes the use of both new and existing materials for catalytic applications, such as zeolites, metal oxides, microporous and mesoporous materials, and monocrystals. In addition, metal-oxides are discussed from a new perspective, i.e. nano- and photocatalytic applications. The material presents these concepts with a new focus on strategies in synthesis, synthesis based on a rational design, the correlation between basic properties/potential applications, and new catalytic solutions for acid-base, redox, hydrogenation, photocatalytic reactions, etc. Presents organometallic concepts for the synthesis of nanocatalysts Provides a synthesis of new materials following the fluorolytic sol-gel concept Covers electronic and photocatalytic properties via synthesis of nano-oxide materials Details the nature of sites in MOFs generating catalytic properties immobilization of triflates in solid matrices for organic reactions

Plasma Catalysis

Author : Annemie Bogaerts
Publisher : MDPI
ISBN 13 : 3038977500
Total Pages : 248 pages
Book Rating : 4.0/5 (389 download)

DOWNLOAD NOW!

Book Synopsis Plasma Catalysis by : Annemie Bogaerts

Download or read book Plasma Catalysis written by Annemie Bogaerts and published by MDPI. This book was released on 2019-04-02 with total page 248 pages. Available in PDF, EPUB and Kindle. Book excerpt: Plasma catalysis is gaining increasing interest for various gas conversion applications, such as CO2 conversion into value-added chemicals and fuels, N2 fixation for the synthesis of NH3 or NOx, methane conversion into higher hydrocarbons or oxygenates. It is also widely used for air pollution control (e.g., VOC remediation). Plasma catalysis allows thermodynamically difficult reactions to proceed at ambient pressure and temperature, due to activation of the gas molecules by energetic electrons created in the plasma. However, plasma is very reactive but not selective, and thus a catalyst is needed to improve the selectivity. In spite of the growing interest in plasma catalysis, the underlying mechanisms of the (possible) synergy between plasma and catalyst are not yet fully understood. Indeed, plasma catalysis is quite complicated, as the plasma will affect the catalyst and vice versa. Moreover, due to the reactive plasma environment, the most suitable catalysts will probably be different from thermal catalysts. More research is needed to better understand the plasma–catalyst interactions, in order to further improve the applications.

In-situ Characterization of Heterogeneous Catalysts

Author : José A. Rodriguez
Publisher : John Wiley & Sons
ISBN 13 : 1118355911
Total Pages : 488 pages
Book Rating : 4.1/5 (183 download)

DOWNLOAD NOW!

Book Synopsis In-situ Characterization of Heterogeneous Catalysts by : José A. Rodriguez

Download or read book In-situ Characterization of Heterogeneous Catalysts written by José A. Rodriguez and published by John Wiley & Sons. This book was released on 2013-04-17 with total page 488 pages. Available in PDF, EPUB and Kindle. Book excerpt: Helps researchers develop new catalysts for sustainable fueland chemical production Reviewing the latest developments in the field, this bookexplores the in-situ characterization of heterogeneous catalysts,enabling readers to take full advantage of the sophisticatedtechniques used to study heterogeneous catalysts and reactionmechanisms. In using these techniques, readers can learn to improvethe selectivity and the performance of catalysts and how to preparecatalysts as efficiently as possible, with minimum waste. In-situ Characterization of Heterogeneous Catalysts featurescontributions from leading experts in the field of catalysis. Itbegins with an introduction to the fundamentals and thencovers: Characterization of electronic and structural properties ofcatalysts using X-ray absorption fine structure spectroscopy Techniques for structural characterization based on X-raydiffraction, neutron scattering, and pair distribution functionanalysis Microscopy and morphological studies Techniques for studying the interaction of adsorbates withcatalyst surfaces, including infrared spectroscopy, Ramanspectroscopy, EPR, and moderate pressure XPS Integration of techniques that provide information on thestructural properties of catalysts with techniques that facilitatethe study of surface reactions Throughout the book, detailed examples illustrate how techniquesfor studying catalysts and reaction mechanisms can be applied tosolve a broad range of problems in heterogeneous catalysis.Detailed figures help readers better understand how and why thetechniques discussed in the book work. At the end of each chapter,an extensive set of references leads to the primary literature inthe field. By explaining step by step modern techniques for the in-situcharacterization of heterogeneous catalysts, this book enableschemical scientists and engineers to better understand catalystbehavior and design new catalysts for green, sustainable fuel andchemical production.

Introduction to Surface Chemistry and Catalysis

Author : Gabor A. Somorjai
Publisher : Wiley-Interscience
ISBN 13 :
Total Pages : 714 pages
Book Rating : 4.3/5 (91 download)

DOWNLOAD NOW!

Book Synopsis Introduction to Surface Chemistry and Catalysis by : Gabor A. Somorjai

Download or read book Introduction to Surface Chemistry and Catalysis written by Gabor A. Somorjai and published by Wiley-Interscience. This book was released on 1994-03-18 with total page 714 pages. Available in PDF, EPUB and Kindle. Book excerpt: Among the topics covered are adhesion and tribological properties, friction, crack formation, and lubrication.

X-Ray Absorption and X-Ray Emission Spectroscopy

Author : Jeroen A. van Bokhoven
Publisher : John Wiley & Sons
ISBN 13 : 1118844238
Total Pages : 940 pages
Book Rating : 4.1/5 (188 download)

DOWNLOAD NOW!

Book Synopsis X-Ray Absorption and X-Ray Emission Spectroscopy by : Jeroen A. van Bokhoven

Download or read book X-Ray Absorption and X-Ray Emission Spectroscopy written by Jeroen A. van Bokhoven and published by John Wiley & Sons. This book was released on 2016-03-21 with total page 940 pages. Available in PDF, EPUB and Kindle. Book excerpt: During the last two decades, remarkable and often spectacular progress has been made in the methodological and instrumental aspects of x–ray absorption and emission spectroscopy. This progress includes considerable technological improvements in the design and production of detectors especially with the development and expansion of large-scale synchrotron reactors All this has resulted in improved analytical performance and new applications, as well as in the perspective of a dramatic enhancement in the potential of x–ray based analysis techniques for the near future. This comprehensive two-volume treatise features articles that explain the phenomena and describe examples of X–ray absorption and emission applications in several fields, including chemistry, biochemistry, catalysis, amorphous and liquid systems, synchrotron radiation, and surface phenomena. Contributors explain the underlying theory, how to set up X–ray absorption experiments, and how to analyze the details of the resulting spectra. X-Ray Absorption and X-ray Emission Spectroscopy: Theory and Applications: Combines the theory, instrumentation and applications of x-ray absorption and emission spectroscopies which offer unique diagnostics to study almost any object in the Universe. Is the go-to reference book in the subject for all researchers across multi-disciplines since intense beams from modern sources have revolutionized x-ray science in recent years Is relevant to students, postdocurates and researchers working on x-rays and related synchrotron sources and applications in materials, physics, medicine, environment/geology, and biomedical materials

Strong Metal-support Interactions

Author : R. T. K. Baker
Publisher :
ISBN 13 :
Total Pages : 258 pages
Book Rating : 4.3/5 (91 download)

DOWNLOAD NOW!

Book Synopsis Strong Metal-support Interactions by : R. T. K. Baker

Download or read book Strong Metal-support Interactions written by R. T. K. Baker and published by . This book was released on 1986 with total page 258 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Molecular Spectroscopy of Oxide Catalyst Surfaces

Author : Anatoli Davydov
Publisher : John Wiley & Sons
ISBN 13 :
Total Pages : 706 pages
Book Rating : 4.3/5 (91 download)

DOWNLOAD NOW!

Book Synopsis Molecular Spectroscopy of Oxide Catalyst Surfaces by : Anatoli Davydov

Download or read book Molecular Spectroscopy of Oxide Catalyst Surfaces written by Anatoli Davydov and published by John Wiley & Sons. This book was released on 2003-06-27 with total page 706 pages. Available in PDF, EPUB and Kindle. Book excerpt: As in the study of transition metal complexes in solution, molecular spectroscopic methods - principally the infrared, ultraviolet/visible and electron spin resonance spectroscopies - have played key roles in establishing the concepts of coordination chemistry occurring at the surfaces of solids. This book describes the development of the principals of coordination chemistry of oxide surfaces using analyses of data obtained by these methods. The nature, properties, concentration of the surface adsorption centers and their influence on the character of interaction with different molecules are investigated. The book commences with an account of the basic theoretical principles and experimental techniques of the various spectroscopy methods, with special attention devoted to in situ measurements where the oxide or catalyst sample is in contact with the adsorbate or the reactant. A detailed account is presented of the methods for characterizing the oxidation state and degree of coordination of surface cations and oxygen anions by the adsorption of probe molecules. The complexation of many inorganic, organometallic and organic molecules with different oxide systems is critically examined, and a classification of formed surface compounds, based on the interaction with definite type of adsorption centers, is given. Possible mechanisms of numerous catalytic reactions, including the transformation of organic molecules over acidic catalysts via the carboionic mechanism, are discussed using the spectroscopic identifications of reaction intermediates. A comprehensive analysis of the literature on the interpretation of the spectra of surface compounds on oxides is presented. This highly illustrated and extensively referenced volume is intended for specialists working in the fields of surface physical chemistry, surface and materials sciences, and adsorption phenomena and is essential reading for those involved in the heterogeneous catalysis by transition metal-oxides.

Nanostructured Catalysts

Author : Susannah L. Scott
Publisher : Springer Science & Business Media
ISBN 13 : 0387306412
Total Pages : 341 pages
Book Rating : 4.3/5 (873 download)

DOWNLOAD NOW!

Book Synopsis Nanostructured Catalysts by : Susannah L. Scott

Download or read book Nanostructured Catalysts written by Susannah L. Scott and published by Springer Science & Business Media. This book was released on 2008-04-06 with total page 341 pages. Available in PDF, EPUB and Kindle. Book excerpt: With the recent advent of nanotechnology, research and development in the area of nanostructured materials has gained unprecedented prominence. Novel materials with potentially exciting new applications are being discovered at a much higher rate than ever before. Innovative tools to fabricate, manipulate, characterize and evaluate such materials are being developed and expanded. To keep pace with this extremely rapid growth, it is necessary to take a breath from time to time, to critically assess the current knowledge and provide thoughts for future developments. This book represents one of these moments, as a number of prominent scientists in nanostructured materials join forces to provide insightful reviews of their areas of expertise, thus offering an overall picture of the state-- the art of the field. Nanostructured materials designate an increasing number of materials with designed shapes, surfaces, structures, pore systems, etc. Nanostructured materials with modified surfaces include those whose surfaces have been altered via such techniques as grafting and tethering of organic or organometallic species, or through various deposition procedures including electro, electroless and vapor deposition, or simple adsorption. These materials find important applications in catalysis, separation and environmental remediation. Materials with patterned surfaces, which are essential for the optoelectronics industry, constitute another important class of surface-modified nanostructured materials. Other materials are considered nanostructured because of their composition and internal organization.

Nanoporous Gold

Author : Arne Wittstock
Publisher : Royal Society of Chemistry
ISBN 13 : 184973528X
Total Pages : 265 pages
Book Rating : 4.8/5 (497 download)

DOWNLOAD NOW!

Book Synopsis Nanoporous Gold by : Arne Wittstock

Download or read book Nanoporous Gold written by Arne Wittstock and published by Royal Society of Chemistry. This book was released on 2012-03-28 with total page 265 pages. Available in PDF, EPUB and Kindle. Book excerpt: High-surface-area materials have recently attracted significant interest due to potential applications in various fields such as electrochemistry and catalysis, gas-phase catalysis, optics, sensors and actuators, energy harvesting and storage. In contrast to classical materials the properties of high-surface-area materials are no longer determined by their bulk, but by their nanoscale architecture. Nanoporous gold (np-Au) represents the fascinating class of mesoporous metals that have been intensively investigated in recent years. The current interest and the increasing number of scientific publications show that np-Au by itself is an outstanding nano-material that justifies a book devoted to all aspects of its properties and applications. The resulting publication is a discussion of this unique nano-material and is an accessible and comprehensive introduction to the field. The book provides a broad, multi-disciplinary platform to learn more about the properties of nanoporous gold from an inter-disciplinary perspective. It starts with an introduction and overview of state-of-the-art applications and techniques characterizing this material and its applications. It then covers the progress in research within the last years. The chapters are in-depth overviews written by the world's leading scientists in the particular field. Each chapter covers one technique or application so that the reader can easily target their favoured topic and will get the latest and state-of-the-art information in the field.

Topics in Surface Chemistry

Author : Eric Kay
Publisher : Springer Science & Business Media
ISBN 13 : 1461340039
Total Pages : 411 pages
Book Rating : 4.4/5 (613 download)

DOWNLOAD NOW!

Book Synopsis Topics in Surface Chemistry by : Eric Kay

Download or read book Topics in Surface Chemistry written by Eric Kay and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 411 pages. Available in PDF, EPUB and Kindle. Book excerpt: The papers in this volume were presented at an international symposium on Topics in Surface Chemistry which was held in Bad Neuenahr, West Germany., September 7-9, 1977. The symposium was sponsored by IBM Germany. It has been recognized for many years that our understanding of bulk phenomena and their subsequent exploitation depends largely on our ability to define correlations between microscopic structure and the physical and chemical phenomena of interest. The role played by surface phenomena in the overall behavior of a material has been a subject for speculation for a long time, but only during the last decade or so have experimental and theor etical tools been developed which make it possible to investigate surface structure and related surface phenomena uniquely. Numerous surface spectroscopies have been developed in recent years intended to describe the geometric, vibrational and electronic structure of a surface. Our present understanding of surface, thin film and interfacial phenomena in solid state physics owes much to these developments. In chemistry much of the interest in surface science has come from the obvious implications to such important and diverse fields as catalysis and corrosion. It takes little imagination to recognize that there are many other areas where advances in surface science can be brought to bear.

Recent Advances in Mechanical Engineering

Author : Anil Kumar
Publisher : Springer Nature
ISBN 13 : 9811596786
Total Pages : 1134 pages
Book Rating : 4.8/5 (115 download)

DOWNLOAD NOW!

Book Synopsis Recent Advances in Mechanical Engineering by : Anil Kumar

Download or read book Recent Advances in Mechanical Engineering written by Anil Kumar and published by Springer Nature. This book was released on 2021-05-25 with total page 1134 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents the select proceedings of the second International Conference on Recent Advances in Mechanical Engineering (RAME 2020). The topics covered include aerodynamics and fluid mechanics, automation, automotive engineering, composites, ceramics and polymers processing, computational mechanics, failure and fracture mechanics, friction, tribology and surface engineering, heating and ventilation, air conditioning system, industrial engineering, IC engines, turbomachinery and alternative fuels, machinability and formability of materials, mechanisms and machines, metrology and computer-aided inspection, micro- and nano-mechanics, modelling, simulation and optimization, product design and development, rapid manufacturing technologies and prototyping, solid mechanics and structural mechanics, thermodynamics and heat transfer, traditional and non-traditional machining processes, vibration and acoustics. The book also discusses various energy-efficient renewable and non-renewable resources and technologies, strategies and technologies for sustainable development and energy & environmental interaction. The book is a valuable reference for beginners, researchers, and professionals interested in sustainable construction and allied fields.

Nanoscience and Nanotechnology in Security and Protection against CBRN Threats

Author : Plamen Petkov
Publisher : Springer Nature
ISBN 13 : 9402420185
Total Pages : 473 pages
Book Rating : 4.4/5 (24 download)

DOWNLOAD NOW!

Book Synopsis Nanoscience and Nanotechnology in Security and Protection against CBRN Threats by : Plamen Petkov

Download or read book Nanoscience and Nanotechnology in Security and Protection against CBRN Threats written by Plamen Petkov and published by Springer Nature. This book was released on 2020-07-29 with total page 473 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is based on the lectures and contributions of the NATO Advanced Study Institute on “Nanoscience and Nanotechnology in Security and Protection Against CBRN Threats” held in Sozopol, Bulgaria, September 2019. It gives a broad overview on this topic as it combines articles addressing the preparation and characterization of different nanoscaled materials (metals, oxides, glasses, polymers, carbon-based, etc.) in the form of nanowires, nanoparticles, nanocomposites, nanodots, thin films, etc. and contributions on their applications in diverse security and safety related fields. In addition, it presents an interdisciplinary approach drawing on the Nanoscience and Nanotechnology know-how of authors from Physics, Chemistry, Engineering, Materials Science and Biology. A further plus-point of the book, which represents the knowledge of experts from over 20 countries, is the combination of longer papers introducing the background on a certain topic, and brief contributions highlighting specific applications in different security areas.